42164034551 has 2 divisors, whose sum is σ = 42164034552. Its totient is φ = 42164034550.

The previous prime is 42164034461. The next prime is 42164034569. The reversal of 42164034551 is 15543046124.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42164034551 - 2²⁶ = 42096925687 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42164034571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21082017275 + 21082017276.

It is an arithmetic number, because the mean of its divisors is an integer number (21082017276).

Almost surely, 2^42164034551 is an apocalyptic number.

42164034551 is a deficient number, since it is larger than the sum of its proper divisors (1).

42164034551 is an equidigital number, since it uses as much as digits as its factorization.

42164034551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 35.

The spelling of 42164034551 in words is "forty-two billion, one hundred sixty-four million, thirty-four thousand, five hundred fifty-one".